package redis;

import org.junit.Test;
import redis.clients.jedis.*;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
import redis.clients.jedis.JedisShardInfo;
import redis.clients.jedis.ShardedJedis;
import redis.clients.jedis.ShardedJedisPool;
import redis.clients.jedis.SortingParams;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

/**
 * Created by wangwu on 2018/12/10.
 */
public class RedisClient {
        private Jedis jedis;//非切片额客户端连接
        private JedisPool jedisPool;//非切片连接池
        private ShardedJedis shardedJedis;//切片额客户端连接
        private ShardedJedisPool shardedJedisPool;//切片连接池

        //Redis 默认是单机环境使用的。
        //数据量较大时需要shard（多机环境），这个时候要用ShardedJedis。
        //ShardedJedis是基于一致性哈希算法实现的分布式Redis缓存集群客户端
        //区别: ShardedJedis不支持多命令操作，像mget、mset、brpop等可以在redis命令后一次性操作多个key的命令

        public RedisClient()
        {
                initialPool();
                initialShardedPool();
                shardedJedis = shardedJedisPool.getResource();
                jedis = jedisPool.getResource();


        }

        /**
         * 初始化非切片池
         */
        private void initialPool()
        {
                // 池基本配置
                JedisPoolConfig config = new JedisPoolConfig();
               // config.setMaxActive(20); //已被高版本替换为 setMaxTotal
               // config.setMaxWait(1000l);  //已被高版本替换为 setMaxWaitMillis
                config.setMaxIdle(5);
                config.setMaxTotal(20);
                config.setMaxWaitMillis(1000l);
                config.setTestOnBorrow(false);

                jedisPool = new JedisPool(config,"127.0.0.1",6379);
        }

        /**
         * 初始化切片池
         */
        private void initialShardedPool()
        {
                // 池基本配置
                JedisPoolConfig config = new JedisPoolConfig();
                // config.setMaxActive(20); //已被高版本替换为 setMaxTotal
                // config.setMaxWait(1000l);  //已被高版本替换为 setMaxWaitMillis
                config.setMaxIdle(5);
                config.setMaxTotal(20);
                config.setMaxWaitMillis(1000l);
                config.setTestOnBorrow(false);
                // slave链接
                List<JedisShardInfo> shards = new ArrayList<JedisShardInfo>();
                shards.add(new JedisShardInfo("127.0.0.1", 6379, "master"));

                // 构造池
                shardedJedisPool = new ShardedJedisPool(config, shards);
        }

        @Test
        public  void show() {
                //KeyOperate();
               //StringOperate();
                //ListOperate();
                SetOperate();
//                SortedSetOperate();
//                HashOperate();
                jedisPool.returnResource(jedis);
                shardedJedisPool.returnResource(shardedJedis);
        }


        private void KeyOperate()
        {
                // 清空当前表里所有数据
                System.out.println("清空库中所有数据："+jedis.flushDB());

                // 清空所有表里所有数据
                System.out.println("清空库中所有数据："+jedis.flushDB());
                // 判断key否存在
                System.out.println("判断key999键是否存在："+shardedJedis.exists("key999"));
                System.out.println("新增key001,value001键值对："+shardedJedis.set("key001", "value001"));
                System.out.println("判断key001是否存在："+shardedJedis.exists("key001"));
                // 输出系统中所有的key
                System.out.println("新增key002,value002键值对："+shardedJedis.set("key002", "value002"));
                System.out.println("系统中所有键如下：");
                Set<String> keys = jedis.keys("*");
                Iterator<String> kk=keys.iterator();
                while (kk.hasNext()){
                        String key=kk.next();
                        System.out.println(key);
                }

                // 删除某个key,若key不存在，则忽略该命令。
                System.out.println("系统中删除key002: "+jedis.del("key002"));
                System.out.println("判断key002是否存在："+shardedJedis.exists("key002"));
                // 设置 key001的过期时间
                System.out.println("设置 key001的过期时间为5秒:"+jedis.expire("key001", 5));
                try{
                        Thread.sleep(2000);
                }
                catch (InterruptedException e){
                }
                // 查看某个key的剩余生存时间,单位【秒】.永久生存或者不存在的都返回-1
                System.out.println("查看key001的剩余生存时间："+jedis.ttl("key001"));
                // 移除某个key的生存时间
                System.out.println("移除key001的生存时间："+jedis.persist("key001"));
                System.out.println("查看key001的剩余生存时间："+jedis.ttl("key001"));
                // 查看key所储存的值的类型
                System.out.println("查看key所储存的值的类型："+jedis.type("key001"));
        /*
         * 一些其他方法：1、修改键名：jedis.rename("key6", "key0");
         *             2、将当前db的key移动到给定的db当中：jedis.move("foo", 1)
         */
                jedis.set("age","99");
                jedis.set("name","ww","NX");  // 第三个参数的值只能取NX或者XX，如果取NX，则只有当key不存在是才进行set，如果取XX，则只有当key已经存在时才进行set

                jedis.get("name");
                jedis.get("age");
                jedis.rename("name", "name-ww");
                jedis.move("name-ww",2);

        }




        private void StringOperate()
        {
                System.out.println("======================String_1==========================");
                // 清空数据
                System.out.println("清空库中所有数据："+jedis.flushDB());

                System.out.println("=============增=============");
                jedis.set("key001","value001");
                jedis.set("key002","value002");
                jedis.set("key003","value003");
                System.out.println("已新增的3个键值对如下：");
                System.out.println(jedis.get("key001"));
                System.out.println(jedis.get("key002"));
                System.out.println(jedis.get("key003"));

                System.out.println("=============删=============");
                System.out.println("删除key003键值对："+jedis.del("key003"));
                System.out.println("获取key003键对应的值："+jedis.get("key003"));

                System.out.println("=============改=============");
                //1、直接覆盖原来的数据
                System.out.println("直接覆盖key001原来的数据："+jedis.set("key001","value001-update"));
                System.out.println("获取key001对应的新值："+jedis.get("key001"));
                //2、直接覆盖原来的数据
                System.out.println("在key002原来值后面追加："+jedis.append("key002","+appendString"));
                System.out.println("获取key002对应的新值"+jedis.get("key002"));

                System.out.println("=============增，删，查（多个）=============");
                /**
                 * mset,mget同时新增，修改，查询多个键值对
                 * 等价于：
                 * jedis.set("name","ssss");
                 * jedis.set("jarorwar","xxxx");
                 */
                System.out.println("一次性新增key201,key202,key203,key204及其对应值："+jedis.mset("key201","value201",
                                "key202","value202","key203","value203","key204","value204"));
                System.out.println("一次性获取key201,key202,key203,key204各自对应的值："+
                                jedis.mget("key201","key202","key203","key204"));
                System.out.println("一次性删除key201,key202："+jedis.del(new String[]{"key201", "key202"}));
                System.out.println("一次性获取key201,key202,key203,key204各自对应的值："+
                                jedis.mget("key201","key202","key203","key204"));
                System.out.println();


                //jedis具备的功能shardedJedis中也可直接使用，下面测试一些前面没用过的方法
                System.out.println("======================String_2==========================");
                // 清空数据
                System.out.println("清空库中所有数据："+jedis.flushDB());

                System.out.println("=============新增键值对时防止覆盖原先值=============");
                System.out.println("原先key301不存在时，新增key301："+shardedJedis.setnx("key301", "value301"));
                System.out.println("原先key302不存在时，新增key302："+shardedJedis.setnx("key302", "value302"));
                System.out.println("当key302存在时，尝试新增key302："+shardedJedis.setnx("key302", "value302_new"));
                System.out.println("获取key301对应的值："+shardedJedis.get("key301"));
                System.out.println("获取key302对应的值："+shardedJedis.get("key302"));

                System.out.println("=============超过有效期键值对被删除=============");
                // 设置key的有效期，并存储数据
                System.out.println("新增key303，并指定过期时间为2秒"+shardedJedis.setex("key303", 2, "key303-2second"));
                System.out.println("获取key303对应的值："+shardedJedis.get("key303"));
                try{
                        Thread.sleep(3000);
                }
                catch (InterruptedException e){
                }
                System.out.println("3秒之后，获取key303对应的值："+shardedJedis.get("key303"));

                System.out.println("=============获取原值，更新为新值一步完成=============");
                System.out.println("key302原值："+shardedJedis.getSet("key302", "value302-after-getset"));
                System.out.println("key302新值："+shardedJedis.get("key302"));

                System.out.println("=============获取子串=============");
                System.out.println("获取key302对应值中的子串："+shardedJedis.getrange("key302", 5, 7));
        }




        private void ListOperate()
        {
                System.out.println("======================list==========================");
                // 清空数据
                System.out.println("清空库中所有数据："+jedis.flushDB());

                System.out.println("=============增=============");


                shardedJedis.lpush("stringlists", "vector1");
                shardedJedis.lpush("stringlists", "vector2");
                shardedJedis.lpush("stringlists", "vector3");
                shardedJedis.lpush("stringlists", "vector4");
                shardedJedis.lpush("stringlists", "vector5");
                shardedJedis.lpush("numberlists", "3");
                shardedJedis.lpush("numberlists", "1");
                System.out.println("所有元素-stringlists："+shardedJedis.lrange("stringlists", 0, -1));
                System.out.println("所有元素-numberlists："+shardedJedis.lrange("numberlists", 0, -1));

                System.out.println("=============删=============");
                // 删除列表指定的值 ，第二个参数为删除的个数（有重复时），后add进去的值先被删，类似于出栈
                System.out.println("成功删除指定元素个数-stringlists："+shardedJedis.lrem("stringlists", 2, "vector"));
                System.out.println("删除指定元素之后-stringlists："+shardedJedis.lrange("stringlists", 0, -1));
                // 删除区间以外的数据
                System.out.println("删除下标0-3区间之外的元素："+shardedJedis.ltrim("stringlists", 0, 3));
                System.out.println("删除指定区间之外元素后-stringlists："+shardedJedis.lrange("stringlists", 0, -1));
                // 列表元素出栈
                System.out.println("出栈元素："+shardedJedis.lpop("stringlists"));
                System.out.println("元素出栈后-stringlists："+shardedJedis.lrange("stringlists", 0, -1));

                System.out.println("=============改=============");
                // 修改列表中指定下标的值
                shardedJedis.lset("stringlists", 0, "hello list!");
                System.out.println("下标为0的值修改后-stringlists："+shardedJedis.lrange("stringlists", 0, -1));
                System.out.println("=============查=============");
                // 数组长度
                System.out.println("长度-stringlists："+shardedJedis.llen("stringlists"));
                System.out.println("长度-numberlists："+shardedJedis.llen("numberlists"));
                // 排序
        /*
         * list中存字符串时必须指定参数为alpha，如果不使用SortingParams，而是直接使用sort("list")，
         * 会出现"ERR One or more scores can't be converted into double"
         */
                SortingParams sortingParameters = new SortingParams();
                sortingParameters.alpha();
                sortingParameters.limit(0, 3);
                System.out.println("返回排序后的结果-stringlists："+shardedJedis.sort("stringlists",sortingParameters));
                System.out.println("返回排序后的结果-numberlists："+shardedJedis.sort("numberlists"));
                // 子串：  start为元素下标，end也为元素下标；-1代表倒数一个元素，-2代表倒数第二个元素
                System.out.println("子串-第二个开始到结束："+shardedJedis.lrange("stringlists", 1, -1));
                // 获取列表指定下标的值
                System.out.println("获取下标为2的元素："+shardedJedis.lindex("stringlists", 2)+"\n");
        }




        private void SetOperate()
        {

                System.out.println("======================set==========================");
                // 清空数据
                System.out.println("清空库中所有数据："+jedis.flushDB());

                System.out.println("=============增=============");
                System.out.println("向sets集合中加入元素element001："+jedis.sadd("sets", "element001"));
                System.out.println("向sets集合中加入元素element002："+jedis.sadd("sets", "element002"));
                System.out.println("向sets集合中加入元素element003："+jedis.sadd("sets", "element003"));
                System.out.println("向sets集合中加入元素element004："+jedis.sadd("sets", "element004"));
                System.out.println("查看sets集合中的所有元素:"+jedis.smembers("sets"));
                System.out.println();

                System.out.println("=============删=============");
                System.out.println("集合sets中删除元素element003："+jedis.srem("sets", "element003"));
                System.out.println("查看sets集合中的所有元素:"+jedis.smembers("sets"));
        /*System.out.println("sets集合中任意位置的元素出栈："+jedis.spop("sets"));//注：出栈元素位置居然不定？--无实际意义
        System.out.println("查看sets集合中的所有元素:"+jedis.smembers("sets"));*/
                System.out.println();

                System.out.println("=============改=============");
                System.out.println();

                System.out.println("=============查=============");
                System.out.println("判断element001是否在集合sets中："+jedis.sismember("sets", "element001"));
                System.out.println("循环查询获取sets中的每个元素：");
                Set<String> set = jedis.smembers("sets");
                Iterator<String> it=set.iterator() ;
                while(it.hasNext()){
                        Object obj=it.next();
                        System.out.println(obj);
                }
                System.out.println();

                System.out.println("=============集合运算=============");
                System.out.println("sets1中添加元素element001："+jedis.sadd("sets1", "element001"));
                System.out.println("sets1中添加元素element002："+jedis.sadd("sets1", "element002"));
                System.out.println("sets1中添加元素element003："+jedis.sadd("sets1", "element003"));
                System.out.println("sets1中添加元素element002："+jedis.sadd("sets2", "element002"));
                System.out.println("sets1中添加元素element003："+jedis.sadd("sets2", "element003"));
                System.out.println("sets1中添加元素element004："+jedis.sadd("sets2", "element004"));
                System.out.println("查看sets1集合中的所有元素:"+jedis.smembers("sets1"));
                System.out.println("查看sets2集合中的所有元素:"+jedis.smembers("sets2"));
                System.out.println("sets1和sets2交集："+jedis.sinter("sets1", "sets2"));
                System.out.println("sets1和sets2并集："+jedis.sunion("sets1", "sets2"));
                System.out.println("sets1和sets2差集："+jedis.sdiff("sets1", "sets2"));//差集：set1中有，set2中没有的元素

        }




        private void SortedSetOperate()
        {
                System.out.println("======================zset==========================");
                // 清空数据
                System.out.println(jedis.flushDB());

                System.out.println("=============增=============");
                System.out.println("zset中添加元素element001："+shardedJedis.zadd("zset", 7.0, "element001"));
                System.out.println("zset中添加元素element002："+shardedJedis.zadd("zset", 8.0, "element002"));
                System.out.println("zset中添加元素element003："+shardedJedis.zadd("zset", 2.0, "element003"));
                System.out.println("zset中添加元素element004："+shardedJedis.zadd("zset", 3.0, "element004"));
                System.out.println("zset集合中的所有元素："+shardedJedis.zrange("zset", 0, -1));//按照权重值排序
                System.out.println();

                System.out.println("=============删=============");
                System.out.println("zset中删除元素element002："+shardedJedis.zrem("zset", "element002"));
                System.out.println("zset集合中的所有元素："+shardedJedis.zrange("zset", 0, -1));
                System.out.println();

                System.out.println("=============改=============");
                System.out.println();

                System.out.println("=============查=============");
                System.out.println("统计zset集合中的元素中个数："+shardedJedis.zcard("zset"));
                System.out.println("统计zset集合中权重某个范围内（1.0——5.0），元素的个数："+shardedJedis.zcount("zset", 1.0, 5.0));
                System.out.println("查看zset集合中element004的权重："+shardedJedis.zscore("zset", "element004"));
                System.out.println("查看下标1到2范围内的元素值："+shardedJedis.zrange("zset", 1, 2));

        }




        private void HashOperate()
        {
                System.out.println("======================hash==========================");
                //清空数据
                System.out.println(jedis.flushDB());

                System.out.println("=============增=============");
                System.out.println("hashs中添加key001和value001键值对："+shardedJedis.hset("hashs", "key001", "value001"));
                System.out.println("hashs中添加key002和value002键值对："+shardedJedis.hset("hashs", "key002", "value002"));
                System.out.println("hashs中添加key003和value003键值对："+shardedJedis.hset("hashs", "key003", "value003"));
                System.out.println("新增key004和4的整型键值对："+shardedJedis.hincrBy("hashs", "key004", 4l));
                System.out.println("hashs中的所有值："+shardedJedis.hvals("hashs"));
                System.out.println();

                System.out.println("=============删=============");
                System.out.println("hashs中删除key002键值对："+shardedJedis.hdel("hashs", "key002"));
                System.out.println("hashs中的所有值："+shardedJedis.hvals("hashs"));
                System.out.println();

                System.out.println("=============改=============");
                System.out.println("key004整型键值的值增加100："+shardedJedis.hincrBy("hashs", "key004", 100l));
                System.out.println("hashs中的所有值："+shardedJedis.hvals("hashs"));
                System.out.println();

                System.out.println("=============查=============");
                System.out.println("判断key003是否存在："+shardedJedis.hexists("hashs", "key003"));
                System.out.println("获取key004对应的值："+shardedJedis.hget("hashs", "key004"));
                System.out.println("批量获取key001和key003对应的值："+shardedJedis.hmget("hashs", "key001", "key003"));
                System.out.println("获取hashs中所有的key："+shardedJedis.hkeys("hashs"));
                System.out.println("获取hashs中所有的value："+shardedJedis.hvals("hashs"));
                System.out.println();

        }







}
